Abstract: The robust linear optimization theory was applied to study the minimum load-shedding problem for transmission network planning with multiple wind farms,providing a new way to the study of systematic security.Based on Seng-Cheol Kang’s robust linear optimization theory,this paper constructed the minimum load-shedding model for transmission network planning considering the influence of wind farms.The wind farm output was described as its minimum,maximum and mean values in the model.And the model was eventually transformed into a deterministic linear programming problem.Whether considering the generation rescheduling or not,the model is able to get the most secure load-shedding scheme.In addition,the decision-making process is flexible because it can get more load-shedding schemes between the most reliable and the most economical range.Taking into account the generation rescheduling,the model can offer the corresponding generation schedule.The model can preliminarily calculate the reliability of the transmission network plans under a variety of load-shedding schemes.The test results of the modified Garver’s 6-bus system and the modified Brazilian southern 46-bus system verified the validity of the proposed method.